Little known fact about Alan Rickman in Die Hard: For his character’s death scene he agreed to fall onto an airbag 25 feet (7.62 meters) below on the count of three. Except the director and the stunt people thought they would get a better reaction if they dropped him on the count of “one.” They were right. His face is priceless.

Here are six more things you (probably) didn’t know about this must-watch Christmas Day movie.